Changes in soil organic carbon and yield in response to compost and spading on a sand

2014
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Natalie Hogg (DAFWA)
Frances Hoyle (DAFWA)
Justin Laycock (DAFWA)
Liam Ryan (DAFWA)
Year(s) 2014
Contributor Liebe Group
Trial location(s) Buntine, WA
Changes in soil organic carbon and yield in response to compost and spading on a sand locations
Aims

To assess the effects of physical (spading), chemical (fertiliser) and biological (compost) treatments on soil organic carbon (SOC) in relation to changes in long term crop yields and quality.

Key messages
Not specified
Lead research organisation Department of Agriculture and Food WA
Host research organisation Liebe Group
Trial funding source Australian Government
Related program N/A
Acknowledgments

Thanks to the Liebe Group and their growers for continued interest and support for this project and management of the trial site. Also thanks to Natalie Hogg (DAFWA), Richard Bowles (UWA) and Justin Laycock (DAFWA) for enabling this trial site to be implemented and sampled. This project is led by the Department of Agriculture & Food, WA in collaboration with the Liebe Group and is supported by funding from the Australian Government.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Forage: Oats
Treatment type(s)
  • Crop: Variety
Trial type Experimental
Trial design Replicated

Buntine 2014

Sow rate or Target density 78 kg/ha
Sow date 6 May 2014 06 May 2014
Harvest date Not specified
Plot size 50m x 18.2m
Plot replication 4
Fertiliser

06/05/2014: All treatments 10 L/ha Flexi-N; 9 L/ha CalSap, Low treatment 25 kg/ha Urea, High treatment 50 kg/ha urea (top-dressed)

07/05/2014: Low treatment 34 kg/ha TSP, High treatment 80 kg/ha TSP (top-dressed)

18/07/2014: Low treatment 25 kg/ha Urea, High treatment 50 kg/ha Urea (top-dressed)

Herbicide

06/05/2014: 2 L/ha Spray.Seed, 0.5 L/ha Diuron, 0.5 L/ha Dual Gold

30/06/2014: 500 g/ha Diuron, 140 g/ha Cadence, 1.5 L/ha Precept, 1% Hasten

Soil amelioration

17/05/2013: Rotary spading

Other trial notes

For further information, contact
Frances Hoyle, DAFWA
frances.hoyle@agric.wa.gov.au
(08) 9363 4686

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Organic carbon (%) Organic carbon (t/ha) pH CaCl2 (pH) Bulk density (g/cm3) Colwell phosphorus (mg/kg) Sulphur (mg/kg) Potassium Cowell (mg/kg)
1 0-10 cm 0.86 12.9 6 1.45 29 25 73
2 10-20 cm 0.5 8.7 4.7 1.76 18 15 51
3 20-30 cm 0.26 1.9 4.7 1.63 7 20 53

Bulk density g/cm3


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Colwell phosphorus mg/kg


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Organic carbon %


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Organic carbon t/ha


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pH CaCl2 pH


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Potassium Cowell mg/kg


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Sulphur mg/kg


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Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Buntine, WA 0 - 10cm 6.00 0.10
Buntine, WA 10 - 30cm 4.70 0.04
Soil conditions
Trial site Soil texture
Buntine, WA Deep yellow sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Buntine, WA Kandosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Buntine WA
2014 136.0mm
2013 154.3mm
2012 164.4mm
2011 156.8mm
2010 119.4mm
2009 144.3mm
2008 187.8mm
2007 156.0mm
2006 163.2mm
2005 150.1mm
2004 141.2mm
2003 146.6mm
2002 102.7mm
2001 97.9mm
2000 171.9mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Buntine WA 2014


Observed climate information

Rainfall avg gsr (mm) 159mm

Derived climate information

Buntine WA

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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.



Trial last modified: 11-12-2019 09:29am AEST